Season 4 poster

Season 4

10 episodes January 14, 1990

Episodes

1 The Telephone Only Rings Twice Jan 14, 1990 No ratings 2 Strictly Business Jan 21, 1990 No ratings 3 The Treasure Jan 28, 1990 No ratings 4 No Deposit, No Return Feb 4, 1990 No ratings 5 At Last Feb 11, 1990 No ratings 6 Fine Adjustments Feb 18, 1990 No ratings 7 Old Scores Feb 25, 1990 No ratings 8 Dangers in the Night Mar 4, 1990 No ratings 9 The Quest Mar 11, 1990 No ratings 10 Best Laid Schemes Mar 18, 1990 No ratings